<form method="get" id="searchform" action="<?php echo home_url( '/' ); ?>">
<ul class="searchsec">
                    <li><input type="text" value="Search" id="searchBox" name="s" onblur="if(this.value == '') { this.value = 'Search'; }" onfocus="if(this.value == 'Search') { this.value = ''; }" class="bar" /></li>
                    <li><input type="image" src="<?php bloginfo( 'template_url' ); ?>/images/go.gif" id="searchsubmit" alt="go" class="go" /></li>
                </ul>

</form>